Segment Information - Segment Results (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Sales	$ 601.0	$ 631.3	$ 1,857.7	$ 1,920.9
Operating profit (loss)	20.9	83.3	(1,084.3)	234.3
Other income (expense), net	0.6	(32.1)	(0.4)	(24.7)
Interest expense, net	(11.9)	(15.4)	(36.5)	(49.5)
Income (loss) before income taxes	9.6	35.8	(1,121.2)	160.1
Identifiable assets	5,510.7		5,510.7		$ 6,605.1
Other
Segment Reporting Information [Line Items]
Operating profit (loss)	(30.0)	(22.0)	(1,247.5)	(78.7)
Identifiable assets	1,045.4		1,045.4		988.8
Specialty Products & Technologies
Segment Reporting Information [Line Items]
Sales	381.7	399.5	1,205.5	1,226.5
Specialty Products & Technologies | Operating segments
Segment Reporting Information [Line Items]
Sales	381.7	399.5	1,205.5	1,226.5
Operating profit (loss)	12.3	61.4	62.5	188.2
Identifiable assets	2,495.6		2,495.6		3,277.7
Equipment & Consumables
Segment Reporting Information [Line Items]
Sales	219.3	231.8	652.2	694.4
Equipment & Consumables | Operating segments
Segment Reporting Information [Line Items]
Sales	219.3	231.8	652.2	694.4
Operating profit (loss)	38.6	$ 43.9	100.7	$ 124.8
Identifiable assets	$ 1,969.7		$ 1,969.7		$ 2,338.6